420950840 Water Pump Housing Gasket for Sea-Doo GTX S 155 2012-2013 2015

Water Pump Housing Gasket for Sea-Doo

This water pump housing gasket seals the pump housing on Sea-Doo personal watercraft, cross-referenced to OEM part 420950840.

Overview

This water pump housing gasket is a direct-fit sealing component for Sea-Doo personal watercraft. It seals the mating surface of the water pump housing to prevent coolant leaks and maintain proper cooling system pressure. A smart pick for riders performing routine pump maintenance or rebuilding a cooling system on a 1503-powered machine.

Built For Performance

• Precision-cut to match the OEM 420950840 sealing profile
• Seals the water pump housing mating surface against coolant leaks
• Maintains proper cooling system pressure for consistent engine temperatures
• Constructed from gasket material suited to marine cooling system conditions
• Direct replacement for the factory housing gasket

Fits These Machines

• for Sea-Doo GTX S 155 1503 (2012-2013)
• for Sea-Doo GTX S 155 1503 (2015)

On-The-Job Use

• Water pump housing reassembly after impeller or seal service
• Cooling system rebuilds on 1503-powered Sea-Doo models
• Routine maintenance to stop coolant seepage at the pump housing
• Seasonal pre-ride inspections of the cooling system

Specs At A Glance

Good To Know

Q: Does this gasket fit the 1503 engine in the GTX S 155? A: Yes, this gasket is listed for the 1503 engine used in the 2012-2013 and 2015 GTX S 155. Confirm your model year and engine before ordering.

Q: Is this an OEM Sea-Doo part? A: This is an aftermarket gasket made to cross-reference OEM 420950840. It is not an original Sea-Doo product.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.